$ git clone -n https://src.fedoraproject.org/rpms/a52dec.git /var/lib/mock/f40-build-2225521-52830/root/chroot_tmpdir/scmroot/a52dec
Cloning into '/var/lib/mock/f40-build-2225521-52830/root/chroot_tmpdir/scmroot/a52dec'...
$ git fetch origin ff0ea15360c103a4406b16f57f698547499645cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/a52dec
 * [new ref]         ff0ea15360c103a4406b16f57f698547499645cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff0ea15 SPDX Migration